Need sage experience - 42 lb/hr or 47 lb/hr injectors
Posted: Thu Aug 31, 2006 7:45 am
Hey all,
I could use some EFI wisdom. With my current 38 lb/hr injectors @ 3bar I'm seeing the following:
72% duty cycle at 196kpa, 5073rpm, 72% throttle, and 10.8:1 AFR
I obviously need to step up the injector size a bit. I have two options that I can find: 42 or 47 lb/hr high impedance Bosch injectors, both rated at 3 bar. I can adjust my fuel pressure regulator from around 2.5 - 3.0 bar.
So given all this, which set should I go with? I have a feeling that the 42's would be enough and that the 47's would be tough to tune a good idle with. I'll likely not be going over the ~200kpa boost pressure.
I could use some EFI wisdom. With my current 38 lb/hr injectors @ 3bar I'm seeing the following:
72% duty cycle at 196kpa, 5073rpm, 72% throttle, and 10.8:1 AFR
I obviously need to step up the injector size a bit. I have two options that I can find: 42 or 47 lb/hr high impedance Bosch injectors, both rated at 3 bar. I can adjust my fuel pressure regulator from around 2.5 - 3.0 bar.
So given all this, which set should I go with? I have a feeling that the 42's would be enough and that the 47's would be tough to tune a good idle with. I'll likely not be going over the ~200kpa boost pressure.
